/*
 * HTSector.java
 * www.bouthier.net
 *
 * The MIT License :
 * -----------------
 * Copyright (c) 2001-2003 Christophe Bouthier
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

package hypertree.model;

/**
 * The HTSector class implements the sector division.
 * 
 * @author Christophe Bouthier [bouthier@loria.fr]
 * @version 1.0
 */
public class HTSector
{

	HTCoordE	A	= null;
	HTCoordE	B	= null;

	/* --- Constructor --- */

	/**
	 * Constructor.
	 */
	public HTSector()
	{
	}

	/* --- Angle --- */

	/**
	 * Returns the angle of the sector.
	 * 
	 * @return the angle of the sector
	 */
	public double getAngle()
	{
		double angle = this.B.arg() - this.A.arg();
		if (angle < 0)
		{
			angle += 2 * Math.PI;
		}
		return angle;
	}

	/**
	 * Returns the angle of the bissectrice of the sector.
	 * 
	 * @return the bisector angle
	 */
	public double getBisectAngle()
	{
		return this.A.arg() + (this.getAngle() / 2);
	}

	/* --- Transformations --- */

	/**
	 * Translates.
	 * 
	 * @param t
	 *            the translation vector
	 */
	public void translate(HTCoordE t)
	{
		this.A.translate(t);
		this.B.translate(t);
	}

	@Override
	public String toString()
	{
		String s = "A: " + this.A + "\n" + "\tB: " + this.B + "\n"
				+ "\tAngle: " + this.getAngle() + "\n" + "\tBisectAngle "
				+ this.getBisectAngle() + "\n";
		return s;
	}

}
